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Is inline assembly language slower than native C++ code?
...e-program optimization and inter-procedural optimization such
as register allocation, constant propagation, common subexpression elimination, instruction scheduling and other complex, not obvious optimizations (Polytope model, for example). On RISC architecture guys stopped worrying about this many...
How can I decompress a gzip stream with zlib?
...ess that can vary according to data entropy. Is there a way to dynamically allocate more space to output buffer when needed ? Thanks
– Zohar81
Jan 22 '19 at 12:33
add a commen...
How does this milw0rm heap spraying exploit work?
...inding feature of Microsoft's XML handler, that causes heap memory to be deallocated incorrectly.
Shellcode is machine code that will run when the bug occurs. Spray and memory are just some space allocated on the heap to help the exploitable condition occur.
...
#define macro for debug printing in C?
...ich deletes the comma preceding the notation if, but only if, the previous token is a comma:
#define debug_print(fmt, ...) \
do { if (DEBUG) fprintf(stderr, fmt, ##__VA_ARGS__); } while (0)
This solution retains the benefit of requiring the format argument while accepting optional arg...
Scala actors: receive vs react
...ead until it receives something. Once it receives something, a thread gets allocated to it, and it is initialized in it.
Now, the initialization part is important. A receiving thread is expected to return something, a reacting thread is not. So the previous stack state at the end of the last react ...
omp parallel vs. omp parallel for
...using separated parallel and for here. In short it can be used for dynamic allocation of OpenMP thread-private arrays before executing for cycle in several threads.
It is impossible to do the same initializing in parallel for case.
UPD:
In the question example there is no difference between single ...
What is the best way to create constants in Objective-C
...ve the same address in memory (depending on how they're declared, they may allocate a new instance every time they're used), so using myObject == MyDefine won't always work as expected, but myObject == MyStaticConst will.
– Ben Leggiero
Mar 10 '16 at 19:47
...
Use C++ with Cocoa Instead of Objective-C?
... cppInstance = new MyCPPClass();
}
return self;
}
- (void) dealloc {
if(cppInstance != NULL) delete cppInstance;
[super dealloc];
}
- (void)callCpp {
cppInstance->SomeMethod();
}
@end
You can find out more about Objective-C++ in the Objective-C language guide. The view...
Is there a generator version of `string.split()` in Python?
...n of split() implemented via re.search() that does not have the problem of allocating too many substrings.
import re
def itersplit(s, sep=None):
exp = re.compile(r'\s+' if sep is None else re.escape(sep))
pos = 0
while True:
m = exp.search(s, pos)
if not m:
...
Why do we need tuples in Python (or any immutable data type)?
... variable lives at a different place in memory than when it was originally allocated? This whole business of immutability in Python seems to be over emphasized.
These are different things. Mutability isn't related to the place it's stored in memory; it means the stuff it points to can't change.
...